Orbit Duel (abbreviated in "Orbit 2l" because the number 2 in Italian is pronounced "due"), is a game that simulates the orbitation of two satellites around a planet. The two players can modify trajectories trying to don't fall on the planet surface, or getting lost in space.

The density simulator calculates how a sphere behaves when placed in water. It allows for different parameters to be changed. It is made to be as life-like as possible - meaning that only prober physics theories is used for calculation.